This is especially true in winter, when temperatures are below freezing and the wind is howling outside. Snuggling deep under the covers sounds so much better than going to work, doesn’t it?

However, research from Microsoft says we should be more pepped to hit the office at the start of the week. The study says people feel most alert and are at their most productive at 10 a.m. on Mondays.

Given this productivity surge, Monday morning is the best time to tackle your to-do list. Just make sure you cross off each item before the end of the day. Microsoft’s research goes on to say that if you don’t, your chances of completing everything on your list drop dramatically.